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7c6d0ee14c
This updates the ads7846 driver to handle external vREF (required on boards using ads7843 chips) without module parameters, and also removes a needless variable with its associated bogus gcc warning. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>